| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Andersen, Shuang Ma
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (30/30 displayed)
- 2022Post-degradation case study of the membrane electrode assembly from a low-temperature PEMFC stack
- 2022Post-degradation case study of the membrane electrode assembly from a low-temperature PEMFC stack
- 2022Microwave-Assisted Scalable Synthesis of Pt/Ccitations
- 2022Microwave-Assisted Scalable Synthesis of Pt/C:Impact of the Microwave Irradiation and Carrier Solution Polarity on Nanoparticle Formation and Aging of the Support Carboncitations
- 2022Insights into Degradation of the Membrane–Electrode Assembly Performance in Low-Temperature PEMFC:the Catalyst, the Ionomer, or the Interface?citations
- 2022Towering non-Faradaic capacitive storage based on high quality reduced graphene oxide from spent graphitecitations
- 2022Insights into Degradation of the Membrane–Electrode Assembly Performance in Low-Temperature PEMFCcitations
- 2021Degradation mechanisms of electrochemical activity of Pt/C during the accelerated stress test focused on catalyst support corrosion
- 2020Preparation and Characterization of Poly(Vinyl Alcohol) (PVA)/SiO 2 , PVA/Sulfosuccinic Acid (SSA) and PVA/SiO 2 /SSA Membranes:A Comparative Studycitations
- 2020Solution combustion synthesized ceria or alumina supported Pt as cathode electrocatalyst for PEM fuel cellscitations
- 2020Preparation and Characterization of Poly(Vinyl Alcohol) (PVA)/SiO2, PVA/Sulfosuccinic Acid (SSA) and PVA/SiO2/SSA Membranescitations
- 2020Platinum recycling through electroless dissolution under mild conditions using a surface activation assisted Pt-complexing approachcitations
- 2020Platinum recycling through electroless dissolution under mild conditions using a surface activation assisted Pt-complexing approachcitations
- 2019Influence of dispersion media on Nafion® ionomer distribution in proton exchange membrane fuel cell catalyst carbon supportcitations
- 2019Influence of dispersion media on Nafion® ionomer distribution in proton exchange membrane fuel cell catalyst carbon supportcitations
- 2018Accurate Determination of Catalyst Loading on Glassy Carbon Disk and Its Impact on Thin Film Rotating Disk Electrode for Oxygen Reduction Reactioncitations
- 2018Exploring the XRF technique as a tool to estimate the degree of leaching in alloy-catalysts used for PEMFCs
- 2018Environmentally and industrially friendly recycling of platinum nanoparticles through electrochemical dissolution–electrodeposition in acid‐free/dilute acidic electrolytescitations
- 2018Environmentally and industrially friendly recycling of platinum nanoparticles through electrochemical dissolution–electrodeposition in acid‐free/dilute acidic electrolytescitations
- 2018Accurate determination of catalyst loading on glassy carbon disk and its impact on thin film rotating disk electrode for oxygen reduction reaction.
- 2018Investigating the single-step solution combustion method for synthesis of oxide supported/unsupported Pt/PtOx, as cathode electrocatalysts for PEMFCs
- 2017Helium Ion Microscopy of proton exchange membrane fuel cell electrode structurescitations
- 2017Helium Ion Microscopy of proton exchange membrane fuel cell electrode structurescitations
- 2016Nano carbon supported platinum catalyst interaction behavior with perfluorosulfonic acid ionomer and their interface structurescitations
- 2015Tin Dioxide as an Effective Antioxidant for Proton Exchange Membrane Fuel Cellscitations
- 2015Tin Dioxide as an Effective Antioxidant for Proton Exchange Membrane Fuel Cellscitations
- 2014Influence of different carbon nanostructures on the electrocatalytic activity and stability of Pt supported electrocatalystscitations
- 2014Influence of different carbon nanostructures on the electrocatalytic activity and stability of Pt supported electrocatalystscitations
- 2013Durability of Carbon Nanofiber (CNF) & Carbon Nanotube (CNT) as Catalyst Support for Proton Exchange Membrane Fuel Cellscitations
- 2012Interaction between Nafion ionomer and noble metal catalyst for PEMFCs
Places of action
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article
Microwave-Assisted Scalable Synthesis of Pt/C
Abstract
<p>Microwave-assisted (MW-assisted) synthesis of nanomaterials is a facile method for material development studies involving small-scale synthesis. The method is being explored further toward industrial scale production of nanoparticle catalyst. Here, optimization of the process parameters for a scalable synthesis of Pt/C through a MW-assisted polyol route using (NH4)2PtCl6 as the Pt precursor has been presented. Further, the impact of MW-irradiation on the carbon support surface structure and its effect on the electrochemical stability of the synthesized Pt/C have been explored. Pt/C electrocatalysts were synthesized using a MW synthesizer in an open system configuration. Effects of different process parameters, namely, solvent composition and hence solvent polarity, reaction time, and Pt precursor concentration on the structure and the electrochemical performance of the synthesized Pt/C catalysts were studied. A mixture of water and ethylene glycol with a water content of 30% v/v was found appropriate for achieving Pt nanoparticles with a particle size of ∼2 nm, suitable for a high electrochemically active surface area (ECSA) of ∼75 m2/gPt. Pt concentrations higher than 5 mM were found unsuitable due to incomplete reduction of the Pt precursor. The minimum reaction time for complete reduction of the Pt precursor was observed to be 400 s. However, increasing the MW treatment time beyond 400 s leads to growth of the Pt nanoparticles and hence reduction in ECSA. Porosity and surface area analysis suggests decreased pore size and surface area of the carbon support by the MW-irradiation during Pt/C synthesis. Hence, the initial electrochemical double layer capacitance (DLC) decreases with increasing MW-irradiation time, leading to the increased surface corrosion and the decreased bulk corrosion of the support carbon, monitored respectively through the relative change in DLC and the evolution of the quinone-hydroquinone redox peak during an accelerated stress test meant for durability assessment of the electrocatalysts. </p>